Stand-boiler.



L. S. LAWSON.

STAND BOILER. APPLICATION FILED MAY 21 1908.

Patented June 15,1909. 1 2 SHEETS-JEEP! 1.

THE NORRIS PETERS C0,, WASHINGTON, m c.

L. S. LAWSON.

STAND BOILER. APPLIOATIOR FILED MAY 21, 1908.

2 BEEETk-BHEBT 2.

Tu: Nomus PETERS cm, \vAsmuaroy. a. c

Patented June 15, 1909.

LINDLEY s. LAWSON, or HOMESTEAD, PENNSYLVANIA.

STAND-BOILER.

Application filed May 21, 1908.

Specification of Letters "Patent.

Patented June 15, 1909.

Serial No. 434,103.

To all whom "it may concern:

Be it known that T, Linonnr S. Lawson, a resident of Homestead, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Stand-Boilers, of which the following is a specification.

The object of this invention is to provide a stand or range boiler of in'iproved construction having means within the boiler for rapidly heating the water, whereby both tl water container and the heating means are incorporated in a single structure.

The invention is designed as an improvement in water heating apparatus now largely used. consisting of a small cylindrical gasburning heater positioned at one side of the boiler with the coil of the heater connected at its upper and lower ends to the boiler.

In the accompanying drawings, Figure 1 is a front elevati on, partly blOl G11,0'.f a stand boiler constructed in accordance with the invention, the coil chamber door being shown open. Fig. 2 is a vertical section with the coil omitted. Figs. 3 and t are sectional plans, taken respectively on lines 3-3 and &-d of Fig. 2.

Referring to the drawings, 2 indicates the external cylindrical shell of the boiler which is not essentially different in outside appearance from those in general use, excepting that on one side it is provided with a hinged door 3 for gaining access to the coil compartment 4. This coil compartment is located within the lower portion of the boiler, and as here shown consists of the upright curved wall 5 united with wall 2 and the boiler bottom 6 and forming an inset compartment which is closed by door 3. The crown T of compartment t is fitted to the upper end of wall 5 and to wall 2 for sealing the upper end of compartmei'it 4 from the main water chamber, and extending from crown 7 upwardly through the boiler crown or top 8 is the flue passage 9, which latter may connect with a chimney or be provided with any other suitable outlet. This flue, though smaller than the coil compartment, is built into shell 2 in like manner, the opening through the shell being closed by removable sheet metal plates 10 having the channel-like bent edges 11 which embrace the edges of shell 2, the plates being slid upwardly into place and removed through the longer opening beneath closed by door 3. lVithin compartment at is the upright coil l l l 12 having its lower end open at 13 to the lower portion of the water chamber. The coil-forming pipe is extended upward from the coil into fine 9, as indicated at 12, and opens laterally therethrough into the upper portion of the water chamber, as shown at 1 1.

15 is the dip pipe fitted in crown 8 which discharges the inflowing cold water into the lower portion of the boiler, and 16 is the hot water outlet.

17 is the drain fitted in bottom 6.

Any suitable means may be provided for heating the coil. A gas burner is preferably used, 18 indicating one form thereof.

19 is the gas supply pipe.

The advantages of the invention are that the boiler and the heating means are inclosed within a single structure. The space within the boiler shell occupied by the coil chamber is of no disadvantage, particularly in view of the fact that all the heat radiated through the coil-inclosing wall 5 is transmitted directly to the water and is not wasted as in those forms of apparatus having the heater located outside the boiler. .\11(l the same is true of the flue which is fully exposed to the water clear to the top of the boiler. Door 3 and removable plates 1.0 give ready access to the coil chamber and flue for cleaning and other purposes.

1 claim 1. A stand water boiler having an inset chamber in a vertical side thereof and open laterally with means for closing the opening, and a water circulating coil and gas burning means within said chamber. 7

2. A stand water boiler orally open and communicating chamberforming insets in a vertical side thereof arranged one above the other, the chambers being open laterally with means for closing the openings, the upper chamber being smaller than the lower chamber and forming a fine therefor, and a water circulating coil and a gas burner located within the lower inset chamber.

3. A stand water boiler having two laterally open and communicating chamberforming insets in a vertical side thereof arranged one above the other, closures for the open sides of the chambers, the upper chamber being smaller than the lower chamher and forming a flue therefor which eX- tends through the top of the boiler at one side of its center, and av water circulating having two lat-- coil and a gas burner within the lower chamber.

4. A. stand boiler comprising a shell inclosing a water chamber, the shell having at one side an inset coil chamber open late ally through the shell, a flue pipe extending from, the coil chamber upwardly through the water chamber, a coil within the coil chamber with the upper portion of the coil forming pipe extending upwardly in the flue pipe and open laterally therethrough to the upper portion of the water chamber, the lower end of the coil communicating with the lower portion of the water chamber, and coil heating means.

A stand boiler comprising an upright shell open at one side for a distance upwardly from its lower end, a chamber forming wall within and secured to the walls of the shell and forming an inset compartment inwardly from the open side of the shell, a flue pipe extending from said compartment upwardly through the water chamber, an upright coil within said compartment and at its upper and lower ends communicating with the water chamber, and coil heating means.

6. A stand boiler consisting of an upright shell open vertically at one side, an inset the shell at said open side and forming asimilar inset l )wallsecured within the lower portion of 1 coil chamber, a wall smaller than said chainberforming wall and se I cured to the open side of the shell and form- I ing an upward continuation of the chamber and connected to the water space within the shell, coil heating means, and removable n'leans closing the open side of the shell. I 7. A stand boiler consisting of shell 2 having bottom 6 and crown 8, the lower portion of the shell open. at one side, a door for the opening, upright inwardly curved wall 5 secured at its edges to shell 2 at opposite sides of the door opening and at its lower end to bottom 6, crown 7 1 fine 9 extending from crown 7 through the I upper portion of shell 2 and open through I crown 8 of the shell, and the coil within the chamber formed by wall 5 and communieating with the interior of shell 2.

In testimony whereof I aflix my signature in presence of two witnesses.

LINDLEY S. LAXVSON. I Witnesses: lV. J. HENDERSON,

JonN lV. BAINBRIDGE.

secured to wall 5, 

